A color-changing device which includes an enclosure at least a portion of
which is material which is desired to change color. There is also
included an illumination device, such as an LED or collection of LEDs
which can illuminate the material. There can also be included a
controller which can take some form of input, such as from a network, or
a sensor, and can convert that input into a signal to control the
illumination. There is also included a method for performing such color
change.